CVE-2026-57178

Katalog CVE

CVSS 7.4 · High EPSS 0,16%

Kerentanan Improper Authentication. Skor CVSS 3.1 7.4 (High) menurut github.com.

Deskripsi (NVD)

Python Social Auth is a social authentication/registration mechanism. Prior to version 5.0.0, the `vk-app` backend accepted VK application callback data without verifying the callback signature when the `auth_key` parameter was omitted. Applications using this backend could treat unsigned attacker-controlled data as a verified VK identity. An attacker could choose callback fields such as `viewer_id`, `access_token`, `api_id`, and `api_result`, potentially allowing authentication as an arbitrary VK user ID. The issue affects only applications using the `vk-app` backend. The issue has been fixed in version 5.0.0 by requiring `auth_key` to be present and valid before callback data is trusted.

Rincian

Terbit di NVD

24 September 2026

Terakhir diubah

28 September 2026

Status NVD

Awaiting Analysis

CVSS 3.1

7.4 (High), sumber github.com
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-287: Improper Authentication
CWE-347: Improper Verification of Cryptographic Signature

EPSS (30 hari)

0,16% peluang dieksploitasi; lebih tinggi dari 4,7% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/python-social-auth/social-core/security/advisories/GHSA-3c93-f73f-qc9h